Awesome

Awesome is a highly configurable, next generation framework window manager for X. It is very fast, extensible and licensed under the GNU GPLv2 license. It is primarly targeted at power users, developers and any people dealing with every day computing tasks and who want to have fine-grained control on theirs graphical environment. Awesome has been designed as a framework window manager. It’s extremely fast, small, dynamic and heavily extensible using the Lua programming language.